Biohazard Trefoil Rings color outline icon

About the Biohazard Trefoil Rings color outline icon

Three interlocking rings arranged around a small central circle form the standard biohazard trefoil, with short spokes radiating from the middle. It warns of infectious material, biological contamination and hazardous medical waste. Use it on laboratory doors, sharps and specimen containers, hospital or quarantine signage, chemical safety documents and epidemic awareness graphics.

The three arcs are rotationally symmetrical and left open at the outer edge, which gives the mark its familiar hooked profile. It pairs with radiation, toxic and flammable hazard icons in a safety set. Reproduce it at full contrast and avoid altering the shape, since it carries a regulated meaning.

This is the colour outline version of the biohazard trefoil rings icon: the same line drawing in an accent colour, useful for highlighting a state, a category or a brand tone without adding visual weight.

It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.

Free for personal and commercial use with attribution.